/*
 * Copyright (c) 2015 Minshenglife. All rights reserved. Minshenglife
 * PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */
package com.sentry.commons.utils;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

/**
 * 文件处理工具类
 * 
 * @author WuBo (wub1@minshenglife.com)
 *
 */
public class Files {

    /**
     * 创建临时文件
     * 
     * @param inputStream
     * @param name 文件名
     * @param ext 扩展名
     * @return
     * @throws IOException
     */
    public static File createTmpFile(InputStream inputStream, String name,
            String ext) throws IOException {
        FileOutputStream fos = null;
        try {
            File tmpFile = File.createTempFile(name, '.' + ext);
            tmpFile.deleteOnExit();
            fos = new FileOutputStream(tmpFile);
            int read = 0;
            byte[] bytes = new byte[1024 * 100];
            while ((read = inputStream.read(bytes)) != -1) {
                fos.write(bytes, 0, read);
            }
            fos.flush();
            return tmpFile;
        } finally {
            if (inputStream != null) {
                try {
                    inputStream.close();
                } catch (IOException e) {
                }
            }
            if (fos != null) {
                try {
                    fos.close();
                } catch (IOException e) {
                }
            }
        }
    }

}
